Areas of “green” and “yellow” epidemic levels are considered safe to not wear a mask. This was stated at a briefing by the Chief Sanitary Doctor of Ukraine Viktor Lyashko.
“Entrance to school is allowed only with a mask on. Teaching in classes in “green” and “yellow” hazard levels is allowed without a mask, provided that safety distance of at least 1.5m from teacher to student is observed. Also it is recommended to use a transparent protective shield”, – said Lyashko. 
He added that teachers should come to work only after they have assessed their own health condition at their discretion. Body temperature should be measured at home and when entering school.
